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Regular Copolyamides VII. Water Adsorption in Regular Copolyoxamides

Tirrell, D. and Grossman, S. and Vogl, O. (1979) Regular Copolyamides VII. Water Adsorption in Regular Copolyoxamides. Makromolekulare Chemie, 180 (3). pp. 721-736. ISSN 0025-116X. http://resolver.caltech.edu/CaltechAUTHORS:20150220-125915170

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Abstract

Water absorption at 93% relative humidity and 25°C was determined for 12 regular aliphatic/aromatic copolyoxamides. The equilibrium water absorption ranges from 7°C to 30%, varied with the polymer structure and is highest in polymers with high amide concentration. The water absorption is reversible and seems to consist of a two-step process, rapid absorption of water by polymer followed by a slower second stage as equilibrium is approached. These polymers have low crystallinity and the water absorption does not occur in crystalline regions. All water is bound to the polymer: it may be freed by heating the hydrated polymer above 100°C. but rebinds completely at room temperature.


Item Type:Article
Related URLs:
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http://dx.doi.org/10.1002/macp.1979.021800316DOIArticle
http://onlinelibrary.wiley.com/doi/10.1002/macp.1979.021800316/abstractPublisherArticle
ORCID:
AuthorORCID
Tirrell, D.0000-0003-3175-4596
Additional Information:©1979 Alber. Now owed by Wiley. Manuscript received: July 17, 1978. Article first published online: 12 Mar. 2003. This work was supported in part by a grant from the National Science Foundation Materials Research Laboratory.
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Record Number:CaltechAUTHORS:20150220-125915170
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150220-125915170
Official Citation:Tirrell, D., Grossman, S. and Vogl, O. (1979), Regular copolyamides, 7. Water absorption in regular copolyoxamides. Makromol. Chem., 180: 721–736. doi: 10.1002/macp.1979.021800316
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55057
Collection:CaltechAUTHORS
Deposited By: Anne Hormann
Deposited On:24 Feb 2015 00:34
Last Modified:24 Feb 2015 00:36

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